World wide they are very common but trust the spin doctors at TNSW to claim it as a new idea. I think that you will find that there was one at Wynyard before the tramway platforms so hardly something new.
Geoff O.
From: 'Tom Jessop' via TramsDownUnder
Sent: Sunday, July 15, 2018 8:00 PM
To:tramsdownunder@...
Subject: Re: [TramsDownUnder] Sydney Metro

Isn't there one of these at Bondi Junction at the city end where the tunnel work was carried out about 10 years ago ?

Tom J.

On ‎Sunday‎, ‎15‎ ‎July‎ ‎2018‎ ‎07‎:‎12‎:‎45‎ ‎PM‎ ‎AEST, Geoff Olsen gol80579@...> wrote:

According to the channel 7 (Sydney) news tonight Sydney metro have built the first and I quote, “Underground diamond crossing in the world!” It appears to be a part of a scissors crossover but first in the world? Well, there you go.
Geoff O.